| 1 | |
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| 2 | :- category(proto_hierarchy, |
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| 3 | implements(proto_hierarchyp)). |
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| 4 | |
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| 5 | |
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| 6 | :- info([ |
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| 7 | version is 1.0, |
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| 8 | authors is 'Paulo Moura', |
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| 9 | date is 2000/7/24, |
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| 10 | comment is 'Prototype hierarchy predicates.']). |
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| 11 | |
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| 12 | |
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| 13 | parent(Parent) :- |
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| 14 | self(Self), |
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| 15 | extends_object(Self, Parent). |
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| 16 | |
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| 17 | |
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| 18 | parents(Parents) :- |
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| 19 | self(Self), |
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| 20 | findall(Parent, extends_object(Self, Parent), Parents). |
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| 21 | |
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| 22 | |
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| 23 | ancestor(Ancestor) :- |
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| 24 | self(Self), |
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| 25 | ancestor(Self, Ancestor). |
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| 26 | |
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| 27 | |
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| 28 | ancestor(Self, Ancestor) :- |
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| 29 | extends_object(Self, Ancestor). |
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| 30 | |
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| 31 | ancestor(Self, Ancestor) :- |
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| 32 | extends_object(Self, Parent), |
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| 33 | ancestor(Parent, Ancestor). |
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| 34 | |
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| 35 | |
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| 36 | ancestors(Ancestors) :- |
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| 37 | self(Self), |
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| 38 | findall(Ancestor, ancestor(Self, Ancestor), Ancestors). |
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| 39 | |
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| 40 | |
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| 41 | leaf(Leaf) :- |
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| 42 | self(Self), |
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| 43 | leaf(Self, Leaf). |
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| 44 | |
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| 45 | |
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| 46 | leaf(Self, Leaf) :- |
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| 47 | extends_object(Leaf, Self), |
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| 48 | \+ extends_object(_, Leaf). |
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| 49 | |
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| 50 | leaf(Self, Leaf) :- |
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| 51 | extends_object(Object, Self), |
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| 52 | leaf(Object, Leaf). |
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| 53 | |
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| 54 | |
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| 55 | leaves(Leaves) :- |
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| 56 | self(Self), |
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| 57 | findall(Leaf, leaf(Self, Leaf), Leaves). |
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| 58 | |
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| 59 | |
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| 60 | descendant(Descendant) :- |
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| 61 | self(Self), |
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| 62 | descendant(Self, Descendant). |
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| 63 | |
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| 64 | |
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| 65 | descendant(Self, Descendant) :- |
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| 66 | extends_object(Descendant, Self). |
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| 67 | |
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| 68 | descendant(Self, Descendant) :- |
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| 69 | extends_object(Descendant, Self), |
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| 70 | \+ extends_object(Descendant, Self). |
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| 71 | |
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| 72 | descendant(Self, Descendant) :- |
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| 73 | extends_object(Subclass, Self), |
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| 74 | descendant(Subclass, Descendant). |
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| 75 | |
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| 76 | |
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| 77 | descendants(Descendants) :- |
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| 78 | self(Self), |
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| 79 | findall(Descendant, descendant(Self, Descendant), Descendants). |
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| 80 | |
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| 81 | |
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| 82 | :- end_category. |
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